Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 60 kA 20 kA 35 kA 80 kA 60 kA 20 kA 35 kA 80 kA ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.002 sec 0.001 sec 0.05 sec 0.2 sec 0.002 sec 0.001 sec 0.05 sec 0.2 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following circuit breakers is prefered for EHT applications ? air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened by remote control opens automatically is opened manually None of these is opened by remote control opens automatically is opened manually None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fusing factor is always 1 always less than 1 None of these always more than 1 always 1 always less than 1 None of these always more than 1 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as operation time lag time lead time clearing time operation time lag time lead time clearing time ANSWER DOWNLOAD EXAMIANS APP
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